The APRP model makes it possible that one or more CPUs run the Linux kernel whereas a dedicated CPU runs special real-time or signal processing program. This patchset adds the following to the current APRP support: 1. Several bug fixes; 2. Running floating point heavy jobs on the RP side; 3. Waking up RP side read by interrupt; 4. CPS multicore APRP support. A mp3 player program was ported to run in the APRP (APSP exactly) model. Considerable performance benefits were observed on the player program. Changes: v2 - v1: o Rebase the patches to the latest kernel, and fix a bunch of warnings and errors reported by the current scripts/checkpatch.pl. o Add MIPS_MALTA dependency to Kconfig since modifications of Malta files are needed. But it should be easy to port changes to other platforms. Deng-Cheng Zhu (2): MIPS: fix/enrich 34K APRP (APSP) functionalities MIPS: enable CPS multicore APRP (APSP) arch/mips/Kconfig | 10 +- .../include/asm/mach-malta/cpu-feature-overrides.h | 3 + arch/mips/include/asm/rtlx.h | 5 + arch/mips/kernel/kspd.c | 26 ++- arch/mips/kernel/rtlx.c | 183 ++++++++++++-- arch/mips/kernel/vpe.c | 255 ++++++++++++++++++-- arch/mips/mti-malta/malta-int.c | 29 +++- 7 files changed, 453 insertions(+), 58 deletions(-)
